28438280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3217}}^1$

素因数の和:3258

約数の個数: 64

約数和(自身を含む): 72984240

約数和(自身を除く): 44545960

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 3217, 4420, 6434, 8840, 12868, 16085, 25736, 32170, 41821, 54689, 64340, 83642, 109378, 128680, 167284, 209105, 218756, 273445, 334568, 418210, 437512, 546890, 710957, 836420, 1093780, 1421914, 1672840, 2187560, 2843828, 3554785, 5687656, 7109570, 14219140, 28438280]

約数ペア:

[(1, 28438280), (2, 14219140), (4, 7109570), (5, 5687656), (8, 3554785), (10, 2843828), (13, 2187560), (17, 1672840), (20, 1421914), (26, 1093780), (34, 836420), (40, 710957), (52, 546890), (65, 437512), (68, 418210), (85, 334568), (104, 273445), (130, 218756), (136, 209105), (170, 167284), (221, 128680), (260, 109378), (340, 83642), (442, 64340), (520, 54689), (680, 41821), (884, 32170), (1105, 25736), (1768, 16085), (2210, 12868), (3217, 8840), (4420, 6434)]